body {margin: 0; padding: 0;font-family: sans-serif}
.logoImg{width:80px;height:80px;margin:50px auto 20px auto;display:block;}
.logoText{text-align:center;font-size:18px;color:#108ee9;}
.bot{width:100%;position:fixed;bottom:0;}
.userImg{width:60px;}
.warnText{color:#f00;padding:10px 0 0 15px;}
.signTj{position:absolute;bottom:70px;width:100%;}

